NEET Chemistry: Questions 386 - 391 of 677

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Question number: 386

» States of Matter » Liquid State » Surface Tension

MCQ▾

Question

Which of the following method can be used to determine the surface tension of liquids?

Choices

Choice (4) Response

a.

boiling point method

b.

single capillary method

c.

Refractometric method

d.

polarimertic method

Question number: 387

» States of Matter » Gaseous State » Gas Laws - Boyle's Law, Charle's Law, Graham's Law of Diffusion

MCQ▾

Question

When the universal gas constant (R) is divided by Avogadro’s number N, their ratio is called?

Choices

Choice (4) Response

a.

Boltzman constant

b.

vander waal constant

c.

planks constant

d.

Rydberg constant

Question number: 388

» States of Matter » Gaseous State » Gas Laws - Boyle's Law, Charle's Law, Graham's Law of Diffusion

MCQ▾

Question

The speed possessed by most of the gaseous molecules is?

Choices

Choice (4) Response

a.

Most propable speed

b.

Average speed

c.

Root mean square speed

d.

Question does not provide sufficient data or is vague

Question number: 389

» Atomic Structure » De-Broglie's Relationship

MCQ▾

Question

with what velocity must an electron travel so that its momentum is equal to that of a photon of wavelength λ =5200 Å?

Choices

Choice (4) Response

a.

1400m/s

b.

1300m/s

c.

1200m/s

d.

1235m/s

Question number: 390

» Hydrogen » Preparation, Properties and Uses of Hydrogen

MCQ▾

Question

Ortho and Para hydrogen differ in?

Choices

Choice (4) Response

a.

in the number of protons

b.

in the nature of spins of protons

c.

in the molecular mass

d.

in the nature of spins of electrons

Question number: 391

» Hydrogen » Structure, Preparation, Reactions and Uses of Hydrogen Peroxide

MCQ▾

Question

Statues coated with white lead on long exposure to atmosphere turn black due to the formation of?

Choices

Choice (4) Response

a.

Lead oxide

b.

Lead sulphate

c.

Lead sulphide

d.

All of the above

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